alleryएक राजमिस्त्री एक दीवार को 6 दिनों में बनाता है और दूसरा 3 दिनों में। एक साथ काम करते हुए, दीवार कितने दिनों में तैयार हो जाएगी?
A1.5 दिन
B2 दिन
C1 दिन
D3 दिन
Answer & Solution
Correct answer: B. 2 दिन
कार्य दरों का योग 1/6 + 1/3 = 1/2 दीवार प्रति दिन है, इसलिए दीवार बनने में 2 दिन लगेंगे।
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